/Engine/Source/Runtime/SlateCore/Public/Input/Reply.h
Enables the use of high precision (raw input) mouse movement, for more accurate mouse movement without mouse ballistics NOTE: This implies mouse capture and hidden mouse movement. Releasing mouse capture deactivates this mode.
[FReply](API\Runtime\SlateCore\Input\FReply) & UseHighPrecisionMouseMovement ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > InMouseCaptor )